Paye settlement agreements –what are they and how do you set one

PAYE Settlement Agreements – What Are They and How Do You Set One Up?

If you’re an employer managing a team, you’ll know that tax compliance can be complicated. Sometimes, despite your best efforts, tax irregularities occur – whether it’s unpaid tax on benefits, expenses that weren’t quite right, or other inadvertent errors. This is where a PAYE Settlement Agreement (PSA) comes in. Rather than leaving your business exposed to penalties and interest, a PSA allows you to settle historical tax liabilities in a straightforward way. At Severn Accounting, we help Worcester employers navigate this process, and we’re sharing what you need to know.

What Exactly Is a PAYE Settlement Agreement?

A PAYE Settlement Agreement is a voluntary arrangement with HMRC that lets you settle tax and National Insurance (NI) liabilities that should have been paid through PAYE but weren’t. It’s designed for genuine mistakes or inadvertent errors – not deliberate tax evasion. Common scenarios include underpaid tax on taxable benefits, expenses that turned out to be taxable, or incorrect expenses claims by employees.

The key benefit? Rather than HMRC assessing individual employees’ tax returns (which could damage your employment relationships), you settle the liability centrally as an employer. Your employees don’t face additional tax bills, and you avoid the complexity of individual amendments to tax records.

When Would You Consider a PSA?

A PSA is relevant if you’ve identified historic tax liabilities spanning multiple years and multiple employees. HMRC generally won’t offer a PSA for a one-off error affecting one individual – they’d typically handle that through normal amendment procedures. However, if you’ve discovered that several staff members have been underpaid tax on benefits, or a category of expenses has been treated incorrectly, a PSA becomes a practical solution.

The arrangement works best when liabilities are relatively small to moderate. If we’re talking about substantial unpaid tax across many years, HMRC might decline the application or require a different approach.

Timing matters, too. If you voluntarily disclose errors before HMRC discovers them, you’re in a much stronger negotiating position. Once HMRC has opened an investigation, PSA options become limited.

How Do You Set Up a PSA?

Step 1: Calculate Your Liability

First, identify all the tax and NI that should have been paid. This requires a thorough review of payroll records, benefits provided, expenses, and any other taxable items. You’ll need to work out the arrears for each tax year affected, plus interest and penalties. HMRC typically applies interest at rates set quarterly; for the current 2024/25 tax year, statutory interest runs at 8% per annum on unpaid tax.

Step 2: Contact HMRC

Write to your local HMRC Tax Compliance Office setting out:

• A detailed explanation of what went wrong
• The tax years affected
• The employees involved
• A full calculation of the liability (tax, NI, interest, and penalties)
• Why you’re applying now (voluntary disclosure is significantly better than discovery)

Being honest and thorough here is essential. HMRC will ask questions if figures don’t add up.

Step 3: Negotiate

HMRC will review your submission. They might accept your figures, ask for clarification, or propose amendments. Penalties are discretionary under PSA – HMRC might reduce or even waive them if you’ve acted reasonably and disclosed voluntarily. There’s no guaranteed outcome, but transparency and co-operation help considerably.

Step 4: Reach Agreement

Once HMRC is satisfied, they’ll issue a formal agreement letter detailing the settlement amount, payment terms, and the tax years covered. You’ll then pay the agreed amount, and the matter is closed.

What About Penalties?

Penalties under a PSA depend on culpability. If errors were genuinely inadvertent and you’ve disclosed them promptly, HMRC may apply reduced penalties under their Determination of Tax Undertakings and Settlements (DTUS) guidelines – potentially 0–30% of the unpaid tax. If negligence is established, penalties could reach 50–100%. Deliberately concealed errors fall outside PSA scope entirely.

The Bottom Line

A PAYE Settlement Agreement offers a pragmatic way to resolve historic payroll tax issues without exposing individual employees or your business to further scrutiny. The earlier you spot errors and approach HMRC voluntarily, the better your position. Getting professional help to calculate liabilities accurately and present your case clearly is genuinely worthwhile – it can save money on penalties and prevents costly mistakes in negotiations.

For tailored advice, contact Severn Accounting — we’re here to help.